I've recently had an incident in which defeated Ti didn't want to just lie down peacefully with its hands over its head, but insisted on trying to worm itself out of the deathlock, trying to bend logic etc. So you have to step on it and obliterate it fully.

Seriously, debates tend to get heated and are probably experienced very differently by Fs. We're not attacking you, we're attacking your theory. A heavy J especially will be in it to win.
My discussions with INFJs have been of the sort in which their emotions seriously corrupt their reasoning skills, though, so I have no real life examples of that interaction.
I'm open to every topic and as Ni dominants we are among the most well-positioned to understand the limits of logic.
INTJs are deep rather than wide, that's true and I can see how a heavy Ti INFJ and an INTJ might accuse one another of the same thing: not understanding what the other is trying to convey, but patience and a willingness to understand can solve this.
I'd also be cautious about basing your ideas of type too much on BlueWing and basing your assessment of how INTJs view logic on Liason only (nothing personal).
it seems I can address issues both within logic and outside it
I think that a typical INTJ is more adept at channelling pure intuition into the debate by means of Te whereas your access to it in the context of the debate is limited since it's got Ti to take into account, so you lose the intensity of either Ni or Ti, but you win the ability to understand both. I'd guess that lacking Te it's sometimes difficult to express your standpoints.